CN111424391A

CN111424391A - Washing machine

Info

Publication number: CN111424391A
Application number: CN201910015291.4A
Authority: CN
Inventors: 徐鹏飞; 田云; 王佑喜; 吉佳文; 孙思成; 范立超
Original assignee: Qingdao Haier Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2020-07-17

Abstract

The invention discloses a washing machine, and relates to the technical field of clothes treatment equipment. The washing machine comprises an outer barrel, an inner barrel rotatably arranged in the outer barrel and an outer barrel cover arranged at an opening of the outer barrel, a water flow channel is formed between the outer barrel and the inner barrel, a plurality of diversion trenches are arranged on the inner side of the outer barrel cover, the diversion trenches extend from the edge of the outer barrel cover to the center, and the plurality of diversion trenches are uniformly distributed along the circumferential direction of the outer barrel cover. In the washing machine, when the inner barrel rotates, water in the outer barrel is upwards rolled along a water flow passage between the inner barrel and the outer barrel under the action of centrifugal force and returns to the inner barrel from the upper part of the inner barrel to form water flow from top to bottom, so that the dissolution of a detergent and the reduction of foam are accelerated, and the washing effect is improved; the outer barrel cover is provided with a plurality of flow guide grooves, and water flow rolled up by the water flow passage can return to the inner barrel under the guiding action of the flow guide grooves, so that the uniformity of the water flow from top to bottom is improved, and the dissolution of the detergent and the reduction of foam are more uniform.

Description

Washing machine

Technical Field

The invention relates to the technical field of clothes treatment equipment, in particular to a washing machine.

Background

The pulsator washing machine drives clothes to be continuously turned over by forward and reverse rotation of a pulsator, so that the clothes and the side wall of an inner barrel are gently rubbed, and decontamination and washing are realized under the action of a detergent.

In the existing impeller washing machine, detergents such as washing powder and the like cannot be dissolved and volatilized as soon as possible, and generated foams cannot be reduced as soon as possible, so that the washing effect is influenced.

Disclosure of Invention

The invention aims to provide a washing machine which can accelerate the dissolution of a detergent and the reduction of foam and is beneficial to improving the washing effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

a washing machine comprises an outer barrel, an inner barrel rotatably arranged in the outer barrel and an outer barrel cover arranged at an opening of the outer barrel, wherein a water flow channel is formed between the outer barrel and the inner barrel, a plurality of diversion trenches are arranged on the inner side of the outer barrel cover, the diversion trenches extend from the edge of the outer barrel cover to the center, and the diversion trenches are uniformly distributed along the circumferential direction of the outer barrel cover.

Wherein, a plurality of guiding gutters are spirally distributed.

The outer barrel cover is provided with a plurality of separation ribs, and the diversion trench is formed between every two adjacent separation ribs.

The two adjacent partition ribs are connected at one end close to the center of the outer barrel cover through a transverse rib, the transverse rib comprises a first section and a second section connected with the first section, the first section and the second section are arranged along the spiral direction, and the height of the first section is larger than that of the second section.

Wherein the top surface of the first section is connected with the top surface of the second section through an inclined surface.

Wherein the height of the second section is 1-2 mm.

The inner side bottom surface of the outer barrel is a plane, an inwards concave drainage structure is arranged on the inner side bottom surface, and the height difference between the top surface of the drainage structure and the inner side bottom surface is 1-2 mm.

The drainage structure comprises a drainage hole and a drainage baffle, wherein the drainage hole is formed in the bottom surface of the inner side of the drainage structure, the drainage baffle is arranged above the drainage hole, and a through hole communicated with the drainage hole is formed in the drainage baffle.

Wherein the washing machine further comprises:

a driving mechanism connected with the inner barrel, the driving mechanism being configured to drive the inner barrel to rotate;

a detection assembly configured to detect a liquid level within the inner barrel; and

a controller electrically connected with the detection assembly and the driving mechanism, respectively, the controller configured to control a rotation speed of the inner tub according to a liquid level inside the inner tub.

When the liquid level in the inner barrel is lower than a first preset water level, the controller controls the inner barrel to work at a first rotating speed;

when the liquid level in the inner barrel is higher than a first preset water level and lower than a second preset water level, the controller controls the inner barrel to work at a second rotating speed which is lower than the first rotating speed;

when the liquid level in the inner barrel is higher than a second preset water level, the controller controls the inner barrel to work at a third rotating speed, and the third rotating speed is lower than the second rotating speed.

Has the advantages that: the invention provides a washing machine. In the washing machine, when the inner barrel rotates, water in the outer barrel is upwards rolled along a water flow passage between the inner barrel and the outer barrel under the action of centrifugal force and returns to the inner barrel from the upper part of the inner barrel to form water flow from top to bottom, so that the dissolution of a detergent and the reduction of foam are accelerated, and the washing effect is improved; the outer barrel cover is provided with a plurality of flow guide grooves, and water flow rolled up by the water flow passage can return to the inner barrel under the guiding action of the flow guide grooves, so that the uniformity of the water flow from top to bottom is improved, and the dissolution of the detergent and the reduction of foam are more uniform.

Drawings

FIG. 1 is a schematic structural view of a washing machine according to the present invention;

fig. 2 is a schematic structural view of an outer tub cover provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a cross-sectional view of an outer tub cover provided in the present invention;

FIG. 5 is a partial enlarged view at B in FIG. 4;

fig. 6 is a plan view of an outer tub provided in the present invention;

fig. 7 is a schematic structural view of a drain baffle provided in the present invention.

Wherein:

1. an outer tub; 2. an inner barrel; 3. an outer barrel cover; 31. a diversion trench; 311. a flow guide port; 32. separating ribs; 33. transverse ribs; 331. a first stage; 332. a second stage; 4. a drainage structure; 41. a drainage baffle; 411. a threaded hole; 412. and a through hole.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

The embodiment provides a washing machine, for example, a pulsator washing machine. As shown in fig. 1, the washing machine includes a cabinet (not shown), an outer tub 1 disposed in the cabinet, an outer tub cover 3 disposed at an opening of the outer tub 1, an inner tub 2 rotatably disposed in the outer tub 1, and a driving mechanism (not shown) connected to the inner tub 2. Water holes (not shown) are formed in the side wall of the inner barrel 2 so that the outer barrel 1 is communicated with the inner barrel 2, and the driving mechanism is used for driving the inner barrel 2 to rotate. When washing clothes, the clothes are placed in the inner barrel 2, and after appropriate water and detergent are injected into the inner barrel 2, the outer barrel cover 3 is covered. The inner barrel 2 rotates under the driving of the driving mechanism to drive the clothes to turn over continuously, the clothes rub against the side wall of the inner barrel 2 or the clothes, and the purpose of cleaning the clothes is achieved by matching with a detergent.

In order to accelerate the dissolving speed of the detergent and the foam reduction speed, a water flow passage is formed between the outer barrel 1 and the inner barrel 2. When the inner barrel 2 rotates under the action of the driving mechanism, the inner barrel 2 drives the water in the outer barrel 1 to rotate, the water in the outer barrel 1 is upwards rolled up under the action of centrifugal force and returns to the inner barrel 2 from the upper part of the inner barrel 2 through a water flow channel, so that top-down day-bathing water flow is formed, when the day-bathing water flow falls, the dissolution of a detergent and the reduction of foams can be accelerated, and the washing effect is improved.

In order to make the detergent mixing and the foam reduction in the inner tub 2 more uniform, as shown in fig. 2, a plurality of guiding grooves 31 are further provided on the inner side of the outer tub cover 3, the guiding grooves 31 extend from the edge of the outer tub cover 3 to the center, and the plurality of guiding grooves 31 are uniformly distributed along the circumferential direction of the outer tub cover 3. After being rolled up through the water flow channel, the water flow returns to the inner barrel 2 through the diversion trench 31, the uniformity of the sky shower water flow can be improved through the diversion trench 31, and the washing effect of clothes is favorably improved.

In this embodiment, the plurality of flow guide grooves 31 may be spirally distributed. Because the water in the water flow channel spirally rises, the guide groove 31 is spirally distributed, so that the water flow can conveniently enter the guide groove 31, and the interference to the flow of the water flow is avoided.

As shown in fig. 3-5, a plurality of ribs 32 are disposed on the inner side of the outer tub cover 3, and a diversion trench 31 is formed between two adjacent ribs 32. In this embodiment, 20 separating ribs 32 are provided on the inner side surface of the outer tub cover 3, and the 20 separating ribs 32 are uniformly spaced along the circumferential direction of the outer tub cover 3 to form 20 flow guide grooves 31. In other embodiments, the number of the partition ribs 32 can be set according to actual needs, and the guide grooves 31 are formed by the partition ribs 32, so that the adjacent guide grooves 31 are independent and not communicated, and the upward curled water flow is uniformly distributed into the plurality of guide grooves 31, which is beneficial to improving the uniformity of the guide grooves 31.

Two adjacent partition ribs 32 are connected at one end close to the center of the outer barrel cover 3 through a transverse rib 33, and the transverse rib 33 comprises a first section 331 and a second section 332 with different heights. The first section 331 and the second section 332 are arranged along the spiral direction of the guide groove 31, and the height of the first section 331 is greater than that of the second section 332. After the water flows through the water flow channel between the outer barrel 1 and the inner barrel 2 and winds up, the water enters the diversion trench 31 from the edge of the outer barrel cover 3, and then flows out from the diversion port 311 at one end of the diversion trench 31 close to the center of the outer barrel cover 3, wherein the diversion port 311 is the position corresponding to the second section 332.

When water flow enters the diversion trench 31, the water flow continuously flows spirally along the diversion trench 31, flows to the second section 332 under the guiding action of the first section 331 and flows out of the second section 332, so that the water flow forms a plurality of sections of water flows after passing through the outer barrel cover 3, the uniformity of the water flow along the circumferential direction is favorably improved, and the dissolving uniformity of detergent and the uniformity of foam reduction are improved. When rivers were flowed out by guiding gutter 31, will pass through the second section 332 of horizontal muscle 33, can guarantee that rivers can not splash when powerful, improve user's use and experience. In order to make the first section 331 and the second section 332 smoothly transition, the top surface of the first section 331 and the top surface of the second section 332 may also be connected by a slope.

In this embodiment, the height of the first section 331 is equal to the height of the spacer rib 32. Alternatively, the first section 331 and the spacer bar 32 may be integrally formed, or may be in a separate structure. In this embodiment, the first section 331 is formed by bending the end of the spacer rib 32, so as to prevent water from flowing out through the connecting gap between the first section 331 and the spacer rib 32. The height of the second section 332 may be 1-2mm, for example, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2 mm.

In order to ensure the uniformity of the water flow returning from the upper part of the inner tub 2 to the inner tub 2, it is necessary to ensure the balance of the water flow in the outer tub 1 in the state where the inner tub 2 is rotated at a high speed. For this, as shown in fig. 6, the inner bottom surface of the outer tub 1 may be a flat surface to make the water pressure in the outer tub 1 uniform. When the inner barrel 2 rotates at a high speed, the water pressure in the outer barrel 1 is uniform, so that the upward-curling water flow entering the water flow channel is uniformly distributed, the water flow ejected by each flow guide groove 31 is uniform, and the phenomenon of water flow loss or density unevenness caused by the unbalanced water flow at the bottom of the outer barrel 1 and ejected by a plurality of flow guide grooves 31 is avoided.

In order to avoid the influence of the plane on the drainage of the washing machine caused by the inner bottom surface of the outer barrel 1, an inward-concave drainage structure 4 can be further arranged on the inner bottom surface of the outer barrel 1, and the height difference between the top surface of the drainage structure 4 and the inner bottom surface of the outer barrel 1 can be 1-2 mm. By setting the height difference of 1-2mm, the influence of the concave structure on the water pressure can be reduced, and the water discharge of the outer barrel 1 can be facilitated. Alternatively, the height difference may be 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2 mm.

As shown in fig. 6 and 7, the drain structure 4 may include a drain hole provided on an inner bottom surface of the outer tub 1. A drain baffle 41 may also be provided at the drain hole. The drain flapper 41 is provided with a screw hole 411 and a through hole 412. The drain baffle 41 may be fixed to the outer tub 1 by screws, which pass through the screw holes 411 and then are screwed into the inner bottom surface of the outer tub 1. The through hole 412 is provided corresponding to the drain hole.

In order to enable different washing water levels to generate the sky shower water flow, the washing machine further comprises a detection assembly and a controller. The detecting component may be a liquid level meter disposed in the outer tub 1 or other structures capable of detecting the liquid level in the outer tub 1. The controller is respectively electrically connected with the detection component and the driving mechanism and is used for controlling the rotating speed of the inner barrel 2 according to the liquid level in the outer barrel 1.

Specifically, a first preset water level, a second preset water level, a first rotating speed, a second rotating speed and a third rotating speed are arranged in the controller. When the washing machine works, the detection assembly detects the water level in the outer barrel 1 and sends the detected water level information to the controller, and the controller compares the detected water level information with the first preset water level and the second preset water level. When the detected water level is less than the first preset water level, the water level in the outer tub 1 is in a low water level state, and the controller controls the inner tub 2 to operate at the first rotation speed. When the detected water level is higher than the first preset water level and lower than the second preset water level, the water level in the outer barrel 1 is in a middle water level state, and at the moment, the controller controls the inner barrel 2 to work at the second rotating speed. Wherein the second rotation speed is less than the first rotation speed. When the detected water level is higher than the second preset water level, the water level in the outer tub 1 is in a high water level state, and at this time, the controller controls the inner tub 2 to operate at a third rotation speed. Wherein the third rotational speed is less than the second rotational speed. That is, when the water level in the outer tub 1 is low, the rotating speed of the inner tub 2 is high, so that the centrifugal force applied to the water is high, and the height of the water flow rolled up is correspondingly high, so that the water flow passes through the outer tub cover 3 to form top-down sky shower water flow. When the water level in the outer barrel 1 is high, the rotating speed of the inner barrel 2 is low, so that the centrifugal force applied to water is small, the height of the water flow which is rolled up is correspondingly low, and the daily shower water flow can be generated on the basis of high water level, thereby being beneficial to reducing the electric energy consumption.

In this embodiment, when the liquid level in the outer tub 1 is lower than 1/3 of the height of the outer tub 1, the inner tub 1 is in a low water level state, and the rotation speed of the corresponding inner tub 2 can be 230-; when the liquid level in the outer barrel 1 is higher than 1/3 of the height of the outer barrel 1 and lower than 2/3 of the height of the outer barrel 1, the inner barrel 1 is in a middle water level state, and the rotating speed of the corresponding inner barrel 2 can be 210 and 230r/min, for example 220 r/min; when the liquid level in the outer tub 1 is higher than 2/3 of the height of the outer tub 1, the inner tub 1 is in a high water level state, and the rotation speed of the corresponding inner tub 2 may be 170 and 190r/min, for example 180 r/min.

In this embodiment, the rotation speed of the inner tub 2 is adjusted according to the water level of the outer tub 1, so that it can be ensured that bathing water flow can be generated at any water level in the washing and rinsing processes. The sky shower water flow can solve the problem that detergents such as washing powder and the like cannot be dissolved as soon as possible, and can reduce foams as soon as possible in the rinsing process, so that the rinsing effect is improved.

In other embodiments, the water level in the outer tub 1 may be divided into more water level ranges, and each water level range is provided with a rotation speed of the inner tub correspondingly, so long as the rotation speed of the inner tub 2 is ensured to be reduced along with the increase of the water level in the outer tub 1.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A washing machine comprises an outer barrel (1), an inner barrel (2) rotatably arranged in the outer barrel (1) and an outer barrel cover (3) arranged at an opening of the outer barrel (1), wherein a water flow channel is formed between the outer barrel (1) and the inner barrel (2), and is characterized in that a plurality of diversion trenches (31) are formed in the inner side of the outer barrel cover (3), the diversion trenches (31) extend from the edge of the outer barrel cover (3) to the center, and the diversion trenches (31) are uniformly distributed along the circumferential direction of the outer barrel cover (3).

2. A washing machine according to claim 1, characterized in that a plurality of said channels (31) are arranged spirally.

3. The washing machine as claimed in claim 2, wherein a plurality of ribs (32) are provided on the outer tub cover (3), and the guiding groove (31) is formed between two adjacent ribs (32).

4. A washing machine according to claim 3, characterized in that two adjacent spacer ribs (32) are connected by a transverse rib (33) at one end near the center of the outer tub cover (3), the transverse rib (33) comprises a first section (331) and a second section (332) connected with the first section (331), the first section (331) and the second section (332) are arranged along the spiral direction, and the height of the first section (331) is greater than that of the second section (332).

5. The washing machine as claimed in claim 4, wherein the top surface of the first section (331) is connected with the top surface of the second section (332) by a slope.

6. A washing machine as in claim 4, characterized in that the height of the second section (332) is 1-2 mm.

7. A washing machine according to any one of claims 1-6, characterized in that the inner bottom surface of the outer tub (1) is a plane, the inner bottom surface is provided with an inwardly concave drainage structure (4), and the height difference between the top surface of the drainage structure (4) and the inner bottom surface is 1-2 mm.

8. The washing machine according to claim 7, wherein the drain structure (4) includes a drain hole provided on the inner bottom surface and a drain baffle (41), the drain baffle (41) is provided above the drain hole, and the drain baffle (41) is provided with a through hole (412) communicating with the drain hole.

9. The washing machine as claimed in any one of claims 1 to 6, further comprising:

a driving mechanism connected with the inner tub (2), the driving mechanism being configured to be able to drive the inner tub (2) to rotate;

a detection assembly configured to detect a liquid level within the inner barrel (2); and

a controller electrically connected with the detection assembly and the driving mechanism, respectively, the controller being configured to be able to control a rotational speed of the inner tub (2) according to a liquid level within the inner tub (2).

10. The washing machine as claimed in claim 9, wherein the controller controls the inner tub (2) to operate at a first rotation speed when a liquid level in the inner tub (2) is lower than a first preset water level;

when the liquid level in the inner barrel (2) is higher than a first preset water level and lower than a second preset water level, the controller controls the inner barrel (2) to work at a second rotating speed which is lower than the first rotating speed;

when the liquid level in the inner barrel (2) is higher than a second preset water level, the controller controls the inner barrel (2) to work at a third rotating speed, and the third rotating speed is lower than the second rotating speed.